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TWI874058B - Multi-layer display module - Google Patents

Multi-layer display module Download PDF

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Publication number
TWI874058B
TWI874058B TW112149779A TW112149779A TWI874058B TW I874058 B TWI874058 B TW I874058B TW 112149779 A TW112149779 A TW 112149779A TW 112149779 A TW112149779 A TW 112149779A TW I874058 B TWI874058 B TW I874058B
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display panel
display
object image
image
layer
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TW112149779A
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Chinese (zh)
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TW202443248A (en
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李允立
廖冠詠
孫聖淵
蔡宗輝
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錼創顯示科技股份有限公司
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G06F3/013—Eye tracking input arrangements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/007—Use of pixel shift techniques, e.g. by mechanical shift of the physical pixels or by optical shift of the perceived pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/02—Composition of display devices
    • G09G2300/023—Display panel composed of stacked panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/028—Improving the quality of display appearance by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/10—Mixing of images, i.e. displayed pixel being the result of an operation, e.g. adding, on the corresponding input pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/12—Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2354/00—Aspects of interface with display user
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2356/00—Detection of the display position w.r.t. other display screens
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2370/00—Aspects of data communication
    • G09G2370/20—Details of the management of multiple sources of image data

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

A multi-layer display module includes a first display panel, a second display panel, a driving device, and an image composition control unit. The second display panel is located beside the first display panel and overlaps the first display panel. The first display panel and the second display panel have an interval therebetween. The driving device is configured to simultaneously provide image signals to the first display panel and the second display panel. An object image displayed in the first display panel is a first object image. An object image displayed in the second display panel is a second object image. The image composition control unit is configured to increase a size of the first object image displayed on the first display panel or decrease a size of the second object image displayed on the second display panel according to information of a relative position of an outside viewer.

Description

多層顯示模組Multi-layer display module

本發明是有關於一種顯示模組，且特別是有關於一種多層顯示模組。 The present invention relates to a display module, and in particular to a multi-layer display module.

隨著顯示技術的進步，顯示器已從傳統、厚重的陰極射線管(cathode ray tube,CRT)演變成較為輕薄的液晶顯示器，且再演化成可自發光的有機發光二極體(organic light-emitting diode,OLED)顯示器與微型發光二極體(micro light-emitting diode,micro-LED)顯示器。此外，透明顯示器也被發展出來。 With the advancement of display technology, displays have evolved from traditional, heavy cathode ray tubes (CRTs) to thinner liquid crystal displays, and then evolved into self-luminous organic light-emitting diode (OLED) displays and micro light-emitting diode (micro-LED) displays. In addition, transparent displays have also been developed.

當顯示品質良好的透明顯示器被發展出來時，其可為使用者帶來新的體驗與應用，例如可以形成多層顯示器。然而，多層顯示器的各層的顯示效果的搭配仍存在一些待克服與解決的課題。 When transparent displays with good display quality are developed, they can bring new experiences and applications to users, such as forming multi-layer displays. However, there are still some issues to be overcome and solved in the matching of the display effects of each layer of the multi-layer display.

本發明提供一種多層顯示模組，其具有自然的動態顯示效果。 The present invention provides a multi-layer display module with a natural dynamic display effect.

本發明的一實施例提出一種多層顯示模組，包括一第一顯示面板、一第二顯示面板、一驅動裝置及一影像合成控制單元。第二顯示面板位於第一顯示面板一側且重疊第一顯示面板，且包括多個顯示像素及這些顯示像素間的透光區域，各顯示像素包括多個微型發光二極體，其中第一顯示面板與第二顯示面板具有一間距。驅動裝置用以同步提供影像訊號予第一顯示面板以及第二顯示面板而分別顯示出第一影像和第二影像，並且提供物件圖像訊號予第一顯示面板或第二顯示面板，而顯示出物件圖像。物件圖像顯示於第一顯示面板時為第一物件圖像，而物件圖像顯示於第二顯示面板時為第二物件圖像，第一影像通過透光區域與第二影像以及物件圖像形成一觀看畫面。影像合成控制單元用以依據外部觀看者之相對位置資訊，並計算外部觀看者分別與第一顯示面板以及第二顯示面板的第一距離以及第二距離，根據第一距離以及第二距離，增加第一物件圖像顯示於第一顯示面板時之尺寸，或縮小第二物件圖像顯示於第二顯示面板時之尺寸，使第一物件圖像與第二物件圖像對於外部觀看者具有相同的視野角。 An embodiment of the present invention provides a multi-layer display module, including a first display panel, a second display panel, a driving device and an image synthesis control unit. The second display panel is located on one side of the first display panel and overlaps the first display panel, and includes a plurality of display pixels and a light-transmitting area between the display pixels, each display pixel includes a plurality of micro-light-emitting diodes, wherein the first display panel and the second display panel have a spacing. The driving device is used to synchronously provide an image signal to the first display panel and the second display panel to display the first image and the second image respectively, and provide an object image signal to the first display panel or the second display panel to display the object image. When the object image is displayed on the first display panel, it is the first object image, and when the object image is displayed on the second display panel, it is the second object image. The first image forms a viewing screen with the second image and the object image through the light-transmitting area. The image synthesis control unit is used to calculate the first distance and the second distance between the external viewer and the first display panel and the second display panel respectively according to the relative position information of the external viewer. According to the first distance and the second distance, the size of the first object image when displayed on the first display panel is increased, or the size of the second object image when displayed on the second display panel is reduced, so that the first object image and the second object image have the same viewing angle for the external viewer.

在本發明的實施例的多層顯示模組中，根據外部觀看者分別與第一顯示面板以及第二顯示面板的第一距離以及第二距離增加第一物件圖像顯示於第一顯示面板時之尺寸，或縮小第二物件圖像顯示於第二顯示面板時之尺寸，而使第一物件圖像與第二物件圖像對於外部觀看者具有相同的視野角。如此一來，在第一顯示面板與第二顯示面板之間切換時，得以接續的提供觀看者相 同大小的影像，本發明的實施例的多層顯示模組便能夠具有自然的動態顯示效果。 In the multi-layer display module of the embodiment of the present invention, the size of the first object image when displayed on the first display panel is increased, or the size of the second object image when displayed on the second display panel is reduced according to the first distance and the second distance of the external viewer from the first display panel and the second display panel, so that the first object image and the second object image have the same viewing angle for the external viewer. In this way, when switching between the first display panel and the second display panel, the viewer can be continuously provided with images of the same size, and the multi-layer display module of the embodiment of the present invention can have a natural dynamic display effect.

50:外部觀看者 50: External Observer

100、100b、100c、100d、100e、100f:多層顯示模組 100, 100b, 100c, 100d, 100e, 100f: multi-layer display module

110:第一顯示面板 110: First display panel

111:第一物件圖像 111: First object image

112、122:顯示像素 112, 122: Display pixels

120:第二顯示面板 120: Second display panel

121:第二物件圖像 121: Second object image

124:透光區域 124: light-transmitting area

130:驅動裝置 130: Driving device

140:影像合成控制單元 140: Image synthesis control unit

150:光學膜 150: Optical film

160:第三顯示面板 160: Third display panel

170:追瞳裝置 170:Pupil tracking device

172、174、174a、174b:感測元件 172, 174, 174a, 174b: Sensing elements

B1、B2:藍色子像素 B1, B2: blue sub-pixels

d:間距 d: Spacing

D1、D2:長邊尺寸 D1, D2: long side dimensions

DS1:第一距離 DS1: First distance

DS2:第二距離 DS2: Second distance

G1、G2:綠色子像素 G1, G2: Green sub-pixels

R1、R2:紅色子像素 R1, R2: red sub-pixel

θ1、θ2:視野角 θ1, θ2: viewing angle

圖1A是本發明的一實施例的多層顯示模組的結構示意圖。 Figure 1A is a schematic diagram of the structure of a multi-layer display module of an embodiment of the present invention.

圖1B為圖1A的多層顯示模組的立體示意圖。 FIG1B is a three-dimensional schematic diagram of the multi-layer display module of FIG1A .

圖2為本發明的另一實施例的多層顯示模組的結構示意圖。 Figure 2 is a schematic diagram of the structure of a multi-layer display module of another embodiment of the present invention.

圖3A為本發明的又一實施例的多層顯示模組的結構示意圖。 Figure 3A is a schematic structural diagram of a multi-layer display module of another embodiment of the present invention.

圖3B為圖3A中的光學膜的穿透光譜與各色子像素所發出的光的峰值波長示意圖。 FIG3B is a schematic diagram of the transmission spectrum of the optical film in FIG3A and the peak wavelength of light emitted by each color sub-pixel.

圖4為本發明的再一實施例的多層顯示模組的立體示意圖。 Figure 4 is a three-dimensional schematic diagram of a multi-layer display module of another embodiment of the present invention.

圖5A與圖5B為一對照實施例中於第一顯示面板顯示第一物件圖像與第二顯示面板顯示第二物件圖像的剖面示意圖。 Figure 5A and Figure 5B are cross-sectional schematic diagrams of a first display panel displaying a first object image and a second display panel displaying a second object image in a comparative embodiment.

圖6為圖1A的多層顯示模組在第一顯示面板顯示第一物件圖像與第二顯示面板顯示第二物件圖像之間切換的立體示意圖。 FIG6 is a three-dimensional schematic diagram of the multi-layer display module of FIG1A switching between displaying a first object image on a first display panel and displaying a second object image on a second display panel.

圖7A、圖7B及圖7C為本發明的其他三實施例的多層顯示模組及其中的感測元件的示意圖。 Figures 7A, 7B and 7C are schematic diagrams of the multi-layer display module and the sensing elements therein of the other three embodiments of the present invention.

圖1A是本發明的一實施例的多層顯示模組的結構示意 圖，而圖1B為圖1A的多層顯示模組的立體示意圖。請參照圖1A與圖1B，本實施例的多層顯示模組100包括一第一顯示面板110、一第二顯示面板120及一驅動裝置130。第二顯示面板120位於第一顯示面板110一側且重疊第一顯示面板110，且包括多個顯示像素122及這些顯示像素122間的透光區域124。在本實施例中，第二顯示面板120可更包括線路，其與這些顯示像素122電性連接，其中線路可包括掃描線、資料線及一些驅動線路，此為所屬領域中具有通常知識者所熟知，在此為了讓圖式簡潔，便不再畫出這些線路。此外，第一顯示面板110與第二顯示面板120具有一間距d。驅動裝置130用以同步提供影像訊號予第一顯示面板110以及第二顯示面板120而分別顯示出第一顯示面板110的顯示畫面和第二顯示面板120的顯示畫面。舉例而言，驅動裝置130用以同步提供影像訊號予第一顯示面板110以及第二顯示面板120而分別顯示出第一影像和第二影像，並且提供物件圖像訊號予第一顯示面板110或第二顯示面板120，而顯示出物件圖像。物件圖像顯示於第一顯示面板110時為第一物件圖像，而物件圖像顯示於第二顯示面板120時為第二物件圖像，第一影像通過透光區域124與第二影像以及物件圖像形成一觀看畫面。特別說明的是，在一實施例中，第二顯示面板120於第一顯示面板110的正投影完全重疊於第一顯示面板110，可有較佳的觀看畫面。 FIG. 1A is a schematic diagram of a multi-layer display module of an embodiment of the present invention, and FIG. 1B is a three-dimensional schematic diagram of the multi-layer display module of FIG. 1A. Referring to FIG. 1A and FIG. 1B, the multi-layer display module 100 of the present embodiment includes a first display panel 110, a second display panel 120, and a driving device 130. The second display panel 120 is located on one side of the first display panel 110 and overlaps the first display panel 110, and includes a plurality of display pixels 122 and light-transmitting regions 124 between the display pixels 122. In this embodiment, the second display panel 120 may further include lines, which are electrically connected to the display pixels 122, wherein the lines may include scanning lines, data lines, and some driving lines, which are well known to those skilled in the art. In order to simplify the diagram, these lines are not drawn here. In addition, the first display panel 110 and the second display panel 120 have a distance d. The driving device 130 is used to synchronously provide image signals to the first display panel 110 and the second display panel 120 to display the display screen of the first display panel 110 and the display screen of the second display panel 120 respectively. For example, the driving device 130 is used to synchronously provide image signals to the first display panel 110 and the second display panel 120 to display the first image and the second image respectively, and provide object image signals to the first display panel 110 or the second display panel 120 to display the object image. The object image is displayed as the first object image when displayed on the first display panel 110, and as the second object image when displayed on the second display panel 120. The first image forms a viewing screen with the second image and the object image through the light-transmitting area 124. In particular, in one embodiment, the orthographic projection of the second display panel 120 on the first display panel 110 completely overlaps the first display panel 110, which can provide a better viewing screen.

在本實施例中，這些顯示像素122包括多個微型發光二 極體，微米級的微型發光二極體做為顯示像素可以有較佳的亮度同時具有較高的透光率使第一影像通過。每一顯示像素122包括至少三個不同光色的微型發光二極體。舉例而言，每一顯示像素122可包括紅色微型發光二極體、綠色微型發光二極體及藍色微型發光二極體。此外，在本實施例中，第一影像的亮度大於第二影像的亮度。舉例而言，第一影像的亮度與第二影像的亮度的比值是落在1.2至2的範圍內。在一實施例中，第一顯示面板110所能夠發出的額定最大亮度為L1，第二顯示面板120所能夠發出的最大額定亮度為L2，且L1大於L2。舉例而言，L1與L2的比值是落在1.2至2的範圍內。在本實施例中，第一影像為一背景影像，且第二影像為一主要影像。由於第一顯示面板110與第二顯示面板120具有間距d，因此第二影像(主要影像)看起來是在第一影像(背景影像)的前方，而有類似立體顯示的效果。在部分實施例中，主要影像的亮度大於背景影像的亮度，使得主要影像對於外部觀看者50能夠較醒目，以達到前後影像的立體視覺效果。 In this embodiment, these display pixels 122 include a plurality of micro-LEDs. Micro-LEDs of micron size as display pixels can have better brightness and higher light transmittance to allow the first image to pass through. Each display pixel 122 includes at least three micro-LEDs of different light colors. For example, each display pixel 122 may include a red micro-LED, a green micro-LED, and a blue micro-LED. In addition, in this embodiment, the brightness of the first image is greater than the brightness of the second image. For example, the ratio of the brightness of the first image to the brightness of the second image is in the range of 1.2 to 2. In one embodiment, the maximum rated brightness that the first display panel 110 can emit is L1, the maximum rated brightness that the second display panel 120 can emit is L2, and L1 is greater than L2. For example, the ratio of L1 to L2 falls within the range of 1.2 to 2. In this embodiment, the first image is a background image, and the second image is a main image. Since the first display panel 110 and the second display panel 120 have a distance d, the second image (main image) appears to be in front of the first image (background image), and has a similar effect to a three-dimensional display. In some embodiments, the brightness of the main image is greater than the brightness of the background image, so that the main image can be more eye-catching to the external viewer 50, so as to achieve a three-dimensional visual effect of the front and rear images.

在本實施例中，第二影像的解析度小於或等於第一影像的解析度，因此外部觀看者50更容易區分第一影像與第二影像，而達到更好的立體顯示效果。 In this embodiment, the resolution of the second image is less than or equal to the resolution of the first image, so it is easier for an external viewer 50 to distinguish the first image from the second image, thereby achieving a better three-dimensional display effect.

在一實施例中，第一影像的亮度由一電壓訊號控制，第二影像的亮度由一電流訊號驅動。舉例而言，第一顯示面板110為液晶顯示器，其由電壓訊號控制亮度，而第二顯示面板120例 如為微型發光二極體顯示器，其微型發光二極體可藉由電流訊號來驅動，以精準控制做為主要影像畫面的呈現。 In one embodiment, the brightness of the first image is controlled by a voltage signal, and the brightness of the second image is driven by a current signal. For example, the first display panel 110 is a liquid crystal display, whose brightness is controlled by a voltage signal, and the second display panel 120 is, for example, a micro-light emitting diode display, whose micro-light emitting diode can be driven by a current signal to accurately control the presentation of the main image screen.

在本實施例中，第二顯示面板120的透光率大於第一顯示面板110的透光率。如此一來，使得外部觀看者50更容易透過第二顯示面板120觀看第一顯示面板110所顯示的第一影像。 In this embodiment, the transmittance of the second display panel 120 is greater than the transmittance of the first display panel 110. In this way, it is easier for the external viewer 50 to view the first image displayed by the first display panel 110 through the second display panel 120.

圖2為本發明的另一實施例的多層顯示模組的結構示意圖。在另一實施例中，請參照圖2，第一顯示面板110的尺寸大於第二顯示面板120的尺寸。舉例而言，第一顯示面板110的尺寸為D1，第二顯示面板120的尺寸為D2，第一顯示面板110與第二顯示面板120的間距為d，而多層顯示模組100a符合D1-D2≧2*

Figure 112149779-A0305-12-0006-13
*d。如此一來，外部觀看者50在120度的視場角下無論以哪個角度觀看，皆能夠透過第二顯示面板120觀看到第一顯示面板110所顯示的第一影像。在一實施例中，D1為第一顯示面板110的顯示區的長邊的尺寸，且D2為第二顯示面板120的顯示區的長邊尺寸。在本實施例中，第二顯示面板120的顯示像素122的發光張角大於第一顯示面板110的顯示像素112的發光張角。第一顯示面板110較小的發光張角有助於使光線能量集中，而更能穿透第二顯示面板120以讓外部觀看者50觀察到，且可有效減少大角度無效的光傳遞至側壁而造成光能量的浪費。 FIG2 is a schematic diagram of the structure of a multi-layer display module of another embodiment of the present invention. In another embodiment, please refer to FIG2, the size of the first display panel 110 is larger than the size of the second display panel 120. For example, the size of the first display panel 110 is D1, the size of the second display panel 120 is D2, the distance between the first display panel 110 and the second display panel 120 is d, and the multi-layer display module 100a meets D1-D2≧2*
Figure 112149779-A0305-12-0006-13
*d. In this way, the external observer 50 can view the first image displayed by the first display panel 110 through the second display panel 120 at any viewing angle under a viewing angle of 120 degrees. In one embodiment, D1 is the size of the long side of the display area of the first display panel 110, and D2 is the size of the long side of the display area of the second display panel 120. In this embodiment, the light emitting angle of the display pixel 122 of the second display panel 120 is greater than the light emitting angle of the display pixel 112 of the first display panel 110. The smaller light emitting angle of the first display panel 110 helps to concentrate the light energy, and it can better penetrate the second display panel 120 to be observed by the external observer 50, and can effectively reduce the waste of light energy caused by the transmission of ineffective light at a large angle to the side wall.

圖3A為本發明的又一實施例的多層顯示模組的結構示意圖，而圖3B為圖3A中的光學膜的穿透光譜與各色子像素所發出的光的峰值波長示意圖。在又一實施例中，請參照圖3A與圖 3B，多層顯示模組100b更包括一光學膜150，配置於第一顯示面板110與第二顯示面板120之間，光學膜150對於第二顯示面板120所發出的光具有高反射率，此反射率例如大於等於90%。此外，在本實施例中，光學膜150對於第一顯示面板110所發出的光具有高透光率，此透光率例如大於等於90%。 FIG3A is a schematic diagram of the structure of a multi-layer display module of another embodiment of the present invention, and FIG3B is a schematic diagram of the transmission spectrum of the optical film in FIG3A and the peak wavelength of the light emitted by each color sub-pixel. In another embodiment, please refer to FIG3A and FIG3B, the multi-layer display module 100b further includes an optical film 150, which is disposed between the first display panel 110 and the second display panel 120, and the optical film 150 has a high reflectivity for the light emitted by the second display panel 120, and the reflectivity is, for example, greater than or equal to 90%. In addition, in this embodiment, the optical film 150 has a high transmittance for the light emitted by the first display panel 110, and the transmittance is, for example, greater than or equal to 90%.

具體而言，在本實施例中，第一顯示面板110的這些顯示像素112具有多個第一子像素，第二顯示面板120的這些顯示像素122具有多個第二子像素，其中相同顏色的第一子像素與第二子像素所發出的光所具有的峰值波長不相同。光學膜150的高透光率波長區間對應該第一顯示面板110的第一子像素的波長，光學膜150的高反射率波長區間對應第二顯示面板120的第二子像素的波長。在本實施例中，第二顯示面板120的每一顯示像素122可包括紅色子像素R2、綠色子像素G2及藍色子像素B2(這些子像素即第二子像素)，第一顯示面板110的每一顯示像素112可包括紅色子像素R1、綠色子像素G1及藍色子像素B1(這些子像素即第一子像素)。在一實施例中，紅色子像素R1的峰值波長例如為630奈米，紅色子像素R2的峰值波長例如為610奈米，綠色子像素G1的峰值波長例如為540奈米，綠色子像素G2的峰值波長例如為520奈米，藍色子像素B1的峰值波長例如為440奈米，且藍色子像素B2的峰值波長例如為460奈米。從圖3B可知，光學膜150對於第一顯示面板110的紅色子像素R1、綠色子像素G1及藍色子像素B1所發出的光具有高透光率，也就 是具有低反射率，且光學膜150對於第二顯示面板120的紅色子像素R2、綠色子像素G2及藍色子像素B2所發出的光具有低透光率，也就是具有高反射率。 Specifically, in this embodiment, the display pixels 112 of the first display panel 110 have a plurality of first sub-pixels, and the display pixels 122 of the second display panel 120 have a plurality of second sub-pixels, wherein the peak wavelengths of the light emitted by the first sub-pixels and the second sub-pixels of the same color are different. The high transmittance wavelength range of the optical film 150 corresponds to the wavelength of the first sub-pixels of the first display panel 110, and the high reflectance wavelength range of the optical film 150 corresponds to the wavelength of the second sub-pixels of the second display panel 120. In this embodiment, each display pixel 122 of the second display panel 120 may include a red sub-pixel R2, a green sub-pixel G2, and a blue sub-pixel B2 (these sub-pixels are the second sub-pixels), and each display pixel 112 of the first display panel 110 may include a red sub-pixel R1, a green sub-pixel G1, and a blue sub-pixel B1 (these sub-pixels are the first sub-pixels). In one embodiment, the peak wavelength of the red sub-pixel R1 is, for example, 630 nanometers, the peak wavelength of the red sub-pixel R2 is, for example, 610 nanometers, the peak wavelength of the green sub-pixel G1 is, for example, 540 nanometers, the peak wavelength of the green sub-pixel G2 is, for example, 520 nanometers, the peak wavelength of the blue sub-pixel B1 is, for example, 440 nanometers, and the peak wavelength of the blue sub-pixel B2 is, for example, 460 nanometers. As can be seen from FIG. 3B, the optical film 150 has a high transmittance for the light emitted by the red sub-pixel R1, the green sub-pixel G1, and the blue sub-pixel B1 of the first display panel 110, that is, it has a low reflectivity, and the optical film 150 has a low transmittance for the light emitted by the red sub-pixel R2, the green sub-pixel G2, and the blue sub-pixel B2 of the second display panel 120, that is, it has a high reflectivity.

圖4為本發明的再一實施例的多層顯示模組的立體示意圖。在再一實施例中，請參照圖4，多層顯示模組100c包括一第三顯示面板160，位於第二顯示面板120遠離第一顯示面板110的一側。在本實施例中，第一顯示面板110、第二顯示面板120及第三顯示面板160依序往外部觀看者50的眼睛排列，且彼此之間具有間距。在本實施例中，第三顯示面板160的透光率大於第二顯示面板120的透光率，且第二顯示面板120的亮度大於第三顯示面板160的亮度。在一實施例中，第三顯示面板的透光率大於50%。本發明並不限制顯示面板的數量為2個或3個，在其他實施例中，也可以有4個以上的顯示面板依序往外部觀看者50的眼睛排列，且彼此之間具有間距，且愈靠近外部觀看者50的顯示面板透光率愈大，以有較佳的顯示效果。 FIG4 is a three-dimensional schematic diagram of a multi-layer display module of another embodiment of the present invention. In another embodiment, please refer to FIG4 , the multi-layer display module 100c includes a third display panel 160, which is located on a side of the second display panel 120 away from the first display panel 110. In this embodiment, the first display panel 110, the second display panel 120 and the third display panel 160 are arranged in sequence toward the eyes of the external viewer 50, and there is a distance between them. In this embodiment, the transmittance of the third display panel 160 is greater than the transmittance of the second display panel 120, and the brightness of the second display panel 120 is greater than the brightness of the third display panel 160. In one embodiment, the transmittance of the third display panel is greater than 50%. The present invention does not limit the number of display panels to 2 or 3. In other embodiments, there may be more than 4 display panels arranged in sequence toward the eyes of the external viewer 50, with a distance between each other, and the closer the display panel is to the external viewer 50, the greater the light transmittance is, so as to have a better display effect.

請再參照圖1A與圖1B，在本實施例中，多層顯示模組100更包括一影像合成控制單元140。影像合成控制單元140用以依據外部觀看者50之相對位置資訊，並計算外部觀看者50分別與第一顯示面板110以及第二顯示面板120的第一距離DS1以及第二距離DS2，根據第一距離DS1以及第二距離DS2，增加(例如等比例增加)第一物件圖像顯示於第一顯示面板110時之尺寸，或縮小(例如等比例縮小)第二物件圖像顯示於第二顯示 面板120時之尺寸，使第一物件圖像與第二物件圖像對於外部觀看者50具有相同的視野角。 Please refer to FIG. 1A and FIG. 1B again. In this embodiment, the multi-layer display module 100 further includes an image synthesis control unit 140. The image synthesis control unit 140 is used to calculate the first distance DS1 and the second distance DS2 between the external viewer 50 and the first display panel 110 and the second display panel 120 respectively according to the relative position information of the external viewer 50. According to the first distance DS1 and the second distance DS2, the size of the first object image when displayed on the first display panel 110 is increased (for example, proportionally increased), or the size of the second object image when displayed on the second display panel 120 is reduced (for example, proportionally reduced), so that the first object image and the second object image have the same viewing angle for the external viewer 50.

舉例而言，如圖5A所繪示，如果原本在第一顯示面板110上顯示有一第一物件圖像111，其大小對於外部觀看者50的眼睛而言是產生一視野角θ1。當多層顯示模組要營造成物件圖像往外部觀看者50靠近的效果時，可使物件圖像從第一顯示面板110跳到第二顯示面板120，也就是利用第二顯示面板120來顯示與第一物件圖像111相同的第二物件圖像121，如圖5B所繪示。然而，由於第一物件圖像111的尺寸與第二物件圖像121的尺寸相同，但第二物件圖像121較靠近外部觀看者50的眼睛，因此第二物件圖像121會對外部觀看者50的眼睛產生一個較大的視野角θ2(其中θ2>θ1)。如此一來，當物件圖像從第一顯示面板110跳到第二顯示面板120，外部觀看者50會覺得物件圖像突然變大，而覺得多層顯示模組的動態顯示效果不自然。 For example, as shown in FIG5A , if a first object image 111 is originally displayed on the first display panel 110, its size generates a viewing angle θ1 for the eyes of the external viewer 50. When the multi-layer display module is to create an effect that the object image is approaching the external viewer 50, the object image can be jumped from the first display panel 110 to the second display panel 120, that is, the second display panel 120 is used to display the second object image 121 that is the same as the first object image 111, as shown in FIG5B . However, since the size of the first object image 111 is the same as the size of the second object image 121, but the second object image 121 is closer to the eyes of the external viewer 50, the second object image 121 will generate a larger viewing angle θ2 (where θ2>θ1) for the eyes of the external viewer 50. In this way, when the object image jumps from the first display panel 110 to the second display panel 120, the external viewer 50 will feel that the object image suddenly becomes larger, and feel that the dynamic display effect of the multi-layer display module is unnatural.

因此，在本實施例中，如圖6所繪示，在案例1中，可先在第一顯示面板110顯示第一物件圖像111，且當第一物件圖像111顯示於第一顯示面板110的狀態要切換到第二物件圖像121顯示於第二顯示面板120的狀態時，影像合成控制單元140可根據外部觀看者50的位置(如上述第一距離DS1與第二距離DS2)，將第二物件圖像121於第二顯示面板120的尺寸減小，以獲得與第一物件圖像111相同的視野角。其中，第一物件圖像111與第二物件圖像121是對應的圖像。如此一來，當物件圖像 從第一顯示面板110跳到第二顯示面板120時，外部觀看者50就不會覺得物件圖像突然變大，而覺得本實施例的多層顯示模組100具有自然的動態顯示效果。 Therefore, in this embodiment, as shown in FIG. 6 , in case 1, the first object image 111 may be displayed on the first display panel 110 first, and when the state of the first object image 111 displayed on the first display panel 110 is to be switched to the state of the second object image 121 displayed on the second display panel 120, the image synthesis control unit 140 may reduce the size of the second object image 121 on the second display panel 120 according to the position of the external observer 50 (such as the first distance DS1 and the second distance DS2 mentioned above) to obtain the same viewing angle as the first object image 111. The first object image 111 and the second object image 121 are corresponding images. In this way, when the object image jumps from the first display panel 110 to the second display panel 120, the external viewer 50 will not feel that the object image suddenly becomes larger, but will feel that the multi-layer display module 100 of this embodiment has a natural dynamic display effect.

此外，在案例2中，也可先在第二顯示面板120顯示第二物件圖像121，且當第二物件圖像121顯示於第二顯示面板120的狀態要切換到第一物件圖像111顯示於第一顯示面板110的狀態時，影像合成控制單元140可根據外部觀看者50的位置(如上述第一距離DS1與第二距離DS2)，將第一物件圖像111於第一顯示面板110的尺寸增大，以獲得與第二物件圖像121相同的視野角。如此一來，當物件圖像從第二顯示面板120跳到第一顯示面板110時，外部觀看者50就不會覺得物件圖像突然縮小，而覺得本實施例的多層顯示模組100具有自然的動態顯示效果。 In addition, in case 2, the second object image 121 may be displayed on the second display panel 120 first, and when the state of the second object image 121 displayed on the second display panel 120 is to be switched to the state of the first object image 111 displayed on the first display panel 110, the image synthesis control unit 140 may increase the size of the first object image 111 on the first display panel 110 according to the position of the external observer 50 (such as the first distance DS1 and the second distance DS2 mentioned above) to obtain the same viewing angle as the second object image 121. In this way, when the object image jumps from the second display panel 120 to the first display panel 110, the external observer 50 will not feel that the object image is suddenly reduced, but will feel that the multi-layer display module 100 of this embodiment has a natural dynamic display effect.

在一實施例中，影像合成控制單元140分別將顯示於第一顯示面板110的第一物件圖像111的尺寸漸變或將顯示於第二顯示面板120的第二物件圖像121的尺寸漸變，使第一物件圖像111與第二物件圖像121對於外部觀看者50具有相同的視野角。 In one embodiment, the image synthesis control unit 140 gradually changes the size of the first object image 111 displayed on the first display panel 110 or the size of the second object image 121 displayed on the second display panel 120, so that the first object image 111 and the second object image 121 have the same viewing angle for the external observer 50.

在另一實施例中，在案例1中將第一物件圖像111顯示於第一顯示面板110的狀態切換到第二物件圖像121顯示於第二顯示面板120的狀態後，影像合成控制單元140可將顯示於第二顯示面板120的第二物件圖像121的尺寸漸增，形成對外部觀看者50而言第二物件圖像121的視野角漸增，而在視覺上產生第 二物件圖像121越來越靠近外部觀看者50的效果。 In another embodiment, after the state of displaying the first object image 111 on the first display panel 110 is switched to the state of displaying the second object image 121 on the second display panel 120 in Case 1, the image synthesis control unit 140 can gradually increase the size of the second object image 121 displayed on the second display panel 120, so that the viewing angle of the second object image 121 gradually increases for the external observer 50, and visually produces the effect that the second object image 121 is getting closer and closer to the external observer 50.

此外，在又一實施例中，在案例2中將第二物件圖像121顯示於第二顯示面板120的狀態切換到第一物件圖像111顯示於第一顯示面板110的狀態後，影像合成控制單元140可將顯示於第一顯示面板110的第一物件圖像111的尺寸漸減，形成對外部觀看者50而言第一物件圖像111的視野角漸減，而在視覺上產生第一物件圖像111越來越遠離外部觀看者50的效果。 In addition, in another embodiment, after the state of displaying the second object image 121 on the second display panel 120 is switched to the state of displaying the first object image 111 on the first display panel 110 in Case 2, the image synthesis control unit 140 can gradually reduce the size of the first object image 111 displayed on the first display panel 110, so that the viewing angle of the first object image 111 gradually decreases for the external observer 50, and visually produces the effect that the first object image 111 is getting farther and farther away from the external observer 50.

在再一實施例中，在案例1中在開始將第一物件圖像111顯示於第一顯示面板110的狀態切換到第二物件圖像121顯示於第二顯示面板120的狀態之前，影像合成控制單元140可將顯示於第一顯示面板110的第一物件圖像111的尺寸漸增，形成對外部觀看者50而言第一物件圖像111的視野角漸增，而在視覺上產生第一物件圖像111越來越靠近外部觀看者50的效果。 In another embodiment, in case 1, before the state of displaying the first object image 111 on the first display panel 110 is switched to the state of displaying the second object image 121 on the second display panel 120, the image synthesis control unit 140 may gradually increase the size of the first object image 111 displayed on the first display panel 110, so that the viewing angle of the first object image 111 gradually increases for the external observer 50, and visually produces the effect that the first object image 111 is getting closer and closer to the external observer 50.

在另一實施例中，在案例2中在開始將第二物件圖像121顯示於第二顯示面板120的狀態切換到第一物件圖像111顯示於第一顯示面板110的狀態之前，影像合成控制單元140可將顯示於第二顯示面板120的第二物件圖像121的尺寸漸減，形成對外部觀看者50而言第二物件圖像121的視野角漸減，而在視覺上產生第二物件圖像121越來越遠離外部觀看者50的效果。 In another embodiment, in case 2, before the state of displaying the second object image 121 on the second display panel 120 is switched to the state of displaying the first object image 111 on the first display panel 110, the image synthesis control unit 140 may gradually reduce the size of the second object image 121 displayed on the second display panel 120, so that the viewing angle of the second object image 121 for the external observer 50 gradually decreases, and visually produces the effect that the second object image 121 is getting farther and farther away from the external observer 50.

在又一實施例中，在案例1中在開始將第一物件圖像111顯示於第一顯示面板110的狀態切換到第二物件圖像121顯示於第二顯示面板120的狀態之前，影像合成控制單元140可將 顯示於第一顯示面板110的第一物件圖像111的尺寸漸增，且在案例1中將第一物件圖像111顯示於第一顯示面板110的狀態切換到第二物件圖像121顯示於第二顯示面板120的狀態後，影像合成控制單元140可將顯示於第二顯示面板120的第二物件圖像121的尺寸漸增，形成對外部觀看者50而言第一物件圖像111與第二物件圖像121的視野角連續漸增，而在視覺上產生物件圖像越來越靠近外部觀看者50的效果。 In another embodiment, before the state of displaying the first object image 111 on the first display panel 110 is switched to the state of displaying the second object image 121 on the second display panel 120 in case 1, the image synthesis control unit 140 may gradually increase the size of the first object image 111 displayed on the first display panel 110, and display the first object image 111 on the first display panel 110 in case 1. After the state of switching from 0 to the state where the second object image 121 is displayed on the second display panel 120, the image synthesis control unit 140 can gradually increase the size of the second object image 121 displayed on the second display panel 120, so that the viewing angles of the first object image 111 and the second object image 121 for the external observer 50 continuously increase, and visually produce the effect that the object image is getting closer and closer to the external observer 50.

在再一實施例中，在案例2中在開始將第二物件圖像121顯示於第二顯示面板120的狀態切換到第一物件圖像111顯示於第一顯示面板110的狀態之前，影像合成控制單元140可將顯示於第二顯示面板120的第二物件圖像121的尺寸漸減，且在案例2中將第二物件圖像121顯示於第二顯示面板120的狀態切換到第一物件圖像111顯示於第一顯示面板110的狀態後，影像合成控制單元140可將顯示於第一顯示面板110的第一物件圖像111的尺寸漸減，形成對外部觀看者50而言第二物件圖像121與第一物件圖像111的視野角漸減，而在視覺上產生物件圖像越來越遠離外部觀看者50的效果。 In yet another embodiment, before the state of displaying the second object image 121 on the second display panel 120 is switched to the state of displaying the first object image 111 on the first display panel 110 in case 2, the image synthesis control unit 140 may gradually reduce the size of the second object image 121 displayed on the second display panel 120, and display the second object image 121 on the second display panel 120 in case 2. After the state of switching from 0 to the state where the first object image 111 is displayed on the first display panel 110, the image synthesis control unit 140 can gradually reduce the size of the first object image 111 displayed on the first display panel 110, so that the viewing angle of the second object image 121 and the first object image 111 gradually decreases for the external observer 50, and visually produces the effect that the object image is getting farther and farther away from the external observer 50.

如上述各實施例所述，多層顯示模組100便能夠提供自然的動態顯示效果。 As described in the above embodiments, the multi-layer display module 100 can provide a natural dynamic display effect.

在本實施例中，多層顯示模組100更包括一追瞳裝置170，用以量測外部觀看者50與多層顯示模組100之相對位置資訊，並提供給影像合成控制單元140。追瞳裝置170可包括相 機、影像感測器、距離感測器或任何適當的位置感測器。在圖7A、圖7B及圖7C的多層顯示模組100d、100e、100f中，追瞳裝置包括內嵌於第一顯示面板110或第二顯示面板120的這些顯示像素112、122間的感測元件172、174、174a或174b。舉例而言，在圖7A的多層顯示模組100d中，第一顯示面板110與第二顯示面板120上分別設有感測元件172與174，感測元件172與顯示像素112交錯排列，而感測元件174與顯示像素122交錯排列。在圖7B的多層顯示模組100e中，感測元件172可每隔至少兩個顯示像素112才出現一次，且感測元件174可每隔至少兩個顯示像素122才出現一次。在圖7C的多層顯示模組100f中，感測元件可分為兩群，其分別由感測元件174a與感測元件174b所構成，兩群可分別感測不同的眼球。感測元件172、174、174a或174b例如為感測像素，其可包括光電二極體。 In this embodiment, the multi-layer display module 100 further includes a pupil tracking device 170 for measuring the relative position information between the external viewer 50 and the multi-layer display module 100 and providing the information to the image synthesis control unit 140. The pupil tracking device 170 may include a camera, an image sensor, a distance sensor or any suitable position sensor. In the multi-layer display modules 100d, 100e, 100f of FIG. 7A, FIG. 7B and FIG. 7C, the pupil tracking device includes a sensing element 172, 174, 174a or 174b embedded between the display pixels 112, 122 of the first display panel 110 or the second display panel 120. For example, in the multi-layer display module 100d of FIG. 7A , the first display panel 110 and the second display panel 120 are provided with sensing elements 172 and 174, respectively. The sensing element 172 is arranged alternately with the display pixel 112, and the sensing element 174 is arranged alternately with the display pixel 122. In the multi-layer display module 100e of FIG. 7B , the sensing element 172 may appear once every at least two display pixels 112, and the sensing element 174 may appear once every at least two display pixels 122. In the multi-layer display module 100f of FIG. 7C , the sensing elements may be divided into two groups, which are respectively composed of sensing elements 174a and sensing elements 174b, and the two groups may sense different eyeballs. The sensing element 172, 174, 174a or 174b is, for example, a sensing pixel, which may include a photodiode.

請再參照圖1A與圖1B，在本實施例中，驅動裝置130包含一影像資料庫，影像資料庫之影像資料具有按照相同時序所列之第一影格與第二影格，驅動裝置經過解碼後，將第一影格與第二影格轉換為影像訊號並在提供第一顯示面板以及第二顯示面板後，使第一顯示面板以及第二顯示面板依據內含之時序資訊同步播放。 Please refer to FIG. 1A and FIG. 1B again. In this embodiment, the driving device 130 includes an image database. The image data of the image database has a first frame and a second frame listed in the same timing sequence. After decoding, the driving device converts the first frame and the second frame into image signals and provides the first display panel and the second display panel with the image signals, so that the first display panel and the second display panel are played synchronously according to the contained timing information.

在一實施例中，第二顯示面板120的透光率為T2，第一顯示面板110亮度為L1、第二顯示面板120亮度為L2，多層顯示模組100符合T2>40%及

Figure 112149779-A0305-12-0013-1
，如此能夠確保外部觀 看者50在觀看第一顯示面板110的影像時能有基本足夠辨識的亮度。在部分實施例中，第一顯示面板110亮度L1為第一顯示面板110所能夠發出的額定最大亮度，第二顯示面板120亮度L2為第二顯示面板120所能夠發出的額定最大亮度。 In one embodiment, the transmittance of the second display panel 120 is T2, the brightness of the first display panel 110 is L1, the brightness of the second display panel 120 is L2, and the multi-layer display module 100 meets T2>40% and
Figure 112149779-A0305-12-0013-1
, so as to ensure that the external observer 50 can have a basically sufficient brightness to identify the image of the first display panel 110. In some embodiments, the brightness L1 of the first display panel 110 is the rated maximum brightness that the first display panel 110 can emit, and the brightness L2 of the second display panel 120 is the rated maximum brightness that the second display panel 120 can emit.

在一實施例中，這些顯示像素122包括多個微型發光二極體，第一顯示面板110亮度為L1，第二顯示面板120亮度為L2，第二顯示面板120的透光率為T2，多層顯示模組100符合

Figure 112149779-A0305-12-0014-2
。當
Figure 112149779-A0305-12-0014-3
大於等於0.8時，能夠確保外部觀看者50在觀看第一顯示面板110的影像時能有基本足夠辨識的亮度，而當
Figure 112149779-A0305-12-0014-4
小於等於1.2時，能避免修正過度，造成第一顯示面板110不必要的能耗。 In one embodiment, the display pixels 122 include a plurality of micro light emitting diodes, the brightness of the first display panel 110 is L1, the brightness of the second display panel 120 is L2, the transmittance of the second display panel 120 is T2, and the multi-layer display module 100 meets
Figure 112149779-A0305-12-0014-2
.when
Figure 112149779-A0305-12-0014-3
When the value is greater than or equal to 0.8, it can ensure that the external observer 50 can have sufficient brightness to recognize the image on the first display panel 110.
Figure 112149779-A0305-12-0014-4
When it is less than or equal to 1.2, over-correction can be avoided, which would cause unnecessary energy consumption of the first display panel 110.

在一實施例中，這些顯示像素122包括多個微型發光二極體，第一顯示面板110亮度為L1，第二顯示面板120亮度為L2，第二顯示面板120的透光率為T2，多層顯示模組100符合

Figure 112149779-A0305-12-0014-5
。如此設計使得外部觀看者50在觀看第一顯示面板110與第二顯示面板120的影像時，兩者的影像亮度較為一致。在部分實施例中，第一顯示面板110亮度L1為第一顯示面板110所能夠發出的額定最大亮度，第二顯示面板120亮度L2為第二顯示面板120所能夠發出的額定最大亮度。 In one embodiment, the display pixels 122 include a plurality of micro light emitting diodes, the brightness of the first display panel 110 is L1, the brightness of the second display panel 120 is L2, the transmittance of the second display panel 120 is T2, and the multi-layer display module 100 meets
Figure 112149779-A0305-12-0014-5
Such a design makes it possible for the external observer 50 to have relatively consistent image brightness when viewing the images of the first display panel 110 and the second display panel 120. In some embodiments, the brightness L1 of the first display panel 110 is the rated maximum brightness that the first display panel 110 can emit, and the brightness L2 of the second display panel 120 is the rated maximum brightness that the second display panel 120 can emit.

請參照圖2，在多層顯示模組100a中，第一顯示面板110的長邊尺寸為D1，第一顯示面板110具有第一像素解析度P1，第二顯示面板120的長邊尺寸為D2，第二顯示面板120具 有第二像素解析度P2，第一顯示面板110與第二顯示面板120的間距為d，第二顯示面板120的透光率為T2，多層顯示模組100a符合T2>40%，P1≠P2及

Figure 112149779-A0305-12-0015-6
。第二顯示面板120具有一個小於100%的透光率T2，這將會對於來自第一顯示面板110的光線會有部分的阻擋，會造成第一顯示面板110畫質下降(畫質包含影像亮度、銳利度、顏色飽和度等)，為了維持足夠的第一顯示面板110的畫質，d不可以太大，亦即應該對於第一顯示面板110所發出的光線至第二顯示面板120的光程加以限制，使第一顯示面板110所發出的光線能在朝向外部觀看者50方向傳遞時，儘早的穿過第二顯示面板120，減少其處在發散傳播的過程中避免畫質有過多的衰退。因此，符合D2 * T2
Figure 112149779-A0305-12-0015-14
d是比較好的情形。 2, in the multi-layer display module 100a, the long side size of the first display panel 110 is D1, the first display panel 110 has a first pixel resolution P1, the long side size of the second display panel 120 is D2, the second display panel 120 has a second pixel resolution P2, the distance between the first display panel 110 and the second display panel 120 is d, the transmittance of the second display panel 120 is T2, and the multi-layer display module 100a meets T2>40%, P1≠P2 and
Figure 112149779-A0305-12-0015-6
The second display panel 120 has a transmittance T2 less than 100%, which will partially block the light from the first display panel 110, causing the image quality of the first display panel 110 to deteriorate (image quality includes image brightness, sharpness, color saturation, etc.). In order to maintain sufficient image quality of the first display panel 110, d cannot be too large, that is, the optical path from the light emitted by the first display panel 110 to the second display panel 120 should be limited, so that the light emitted by the first display panel 110 can pass through the second display panel 120 as soon as possible when it is transmitted toward the external observer 50, reducing its process of divergence and propagation to avoid excessive degradation of image quality. Therefore, it meets D2 * T2
Figure 112149779-A0305-12-0015-14
D is a better situation.

另一方面，第二顯示面板的像素解析度P2大於或等於第一顯示面板的像素解析度P1，其中像素解析度P1、P2是指每一吋長度的像素數，像素解析度P2越大代表第二顯示面板120上的單吋長度的微型發光二極體數量越密集，所能提供的第二顯示面板120畫質較佳，此時觀賞者能夠較近的觀看，當第一距離DS1與第二距離DS2都縮小時，以較小的間距d即可達到景深的效果。因此，P2與間距d兩者間約呈反比的趨勢。第二顯示面板120的尺寸會影響觀賞距離，而觀賞距離一旦增加，則第一距離DS1與第二距離DS2會同時增加，為了能保持立體的觀賞效果(維持兩者之間的景深效果)，相應的間距d必須相應的也增 加，這將會改變間距d所設置的下限。因此，D2的尺寸D2與間距d約呈正比的趨勢。當｜P1-P2｜越小，第一顯示面板110與第二顯示面板120之間的影像顯示細節越相似，人眼越不容易察覺兩者的差異，尤其是在兩者皆看起來都是很清楚的時候，此時相對的需要增加間距d，確保第一顯示面板110與第二顯示面板120對於觀賞者來說，是具有不同的視覺深度，以維持三維的視覺感受。因此｜P1-P2｜與d約呈反比的趨勢。綜合上述，符合

Figure 112149779-A0305-12-0016-7
是比較好的情形。 On the other hand, the pixel resolution P2 of the second display panel is greater than or equal to the pixel resolution P1 of the first display panel, wherein the pixel resolutions P1 and P2 refer to the number of pixels per inch. The larger the pixel resolution P2, the denser the number of micro-LEDs per inch on the second display panel 120, and the better the image quality of the second display panel 120. At this time, the viewer can watch closer. When the first distance DS1 and the second distance DS2 are both reduced, the depth of field effect can be achieved with a smaller distance d. Therefore, P2 and the distance d are approximately inversely proportional. The size of the second display panel 120 affects the viewing distance. Once the viewing distance increases, the first distance DS1 and the second distance DS2 will increase at the same time. In order to maintain the three-dimensional viewing effect (maintain the depth of field effect between the two), the corresponding distance d must also increase accordingly, which will change the lower limit set by the distance d. Therefore, the size D2 of D2 is approximately proportional to the distance d. When |P1-P2| is smaller, the image display details between the first display panel 110 and the second display panel 120 are more similar, and the human eye is less likely to perceive the difference between the two, especially when both appear very clear. At this time, the distance d needs to be increased to ensure that the first display panel 110 and the second display panel 120 have different visual depths for the viewer to maintain a three-dimensional visual experience. Therefore, |P1-P2| is inversely proportional to d. In summary, it is consistent with
Figure 112149779-A0305-12-0016-7
This is a better situation.

在一實施例中，影像合成控制單元140例如為中央處理單元(central processing unit,CPU)、微處理器(microprocessor)、數位訊號處理器(digital signal processor,DSP)、可程式化控制器、可程式化邏輯裝置(programmable logic device,PLD)或其他類似裝置或這些裝置的組合，本發明並不加以限制。此外，在一實施例中，影像合成控制單元140的各功能可被實作為多個程式碼。這些程式碼會被儲存在一個記憶體中，由影像合成控制單元140來執行這些程式碼。或者，在一實施例中，影像合成控制單元140的各功能可被實作為一或多個電路。本發明並不限制用軟體或硬體的方式來實作影像合成控制單元140的各功能。 In one embodiment, the image synthesis control unit 140 is, for example, a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), a programmable controller, a programmable logic device (PLD), or other similar devices or a combination of these devices, and the present invention is not limited thereto. In addition, in one embodiment, each function of the image synthesis control unit 140 can be implemented as a plurality of program codes. These program codes are stored in a memory, and the image synthesis control unit 140 executes these program codes. Alternatively, in one embodiment, each function of the image synthesis control unit 140 can be implemented as one or more circuits. The present invention is not limited to implementing each function of the image synthesis control unit 140 by software or hardware.

綜上所述，在本發明的實施例的多層顯示模組中，根據外部觀看者分別與第一顯示面板以及第二顯示面板的第一距離以及第二距離增加第一物件圖像顯示於第一顯示面板時之尺寸，或 縮小第二物件圖像顯示於第二顯示面板時之尺寸，而使第一物件圖像與第二物件圖像對於外部觀看者具有相同的視野角。如此一來，本發明的實施例的多層顯示模組在第一顯示面板與第二顯示面板之間切換時，得以接續的提供觀看者相同大小的影像，便能夠具有自然的動態顯示效果。 In summary, in the multi-layer display module of the embodiment of the present invention, the size of the first object image when displayed on the first display panel is increased, or the size of the second object image when displayed on the second display panel is reduced according to the first distance and the second distance of the external viewer from the first display panel and the second display panel, so that the first object image and the second object image have the same viewing angle for the external viewer. In this way, when the multi-layer display module of the embodiment of the present invention switches between the first display panel and the second display panel, it can continuously provide the viewer with images of the same size, so as to have a natural dynamic display effect.

50:外部觀看者 50: External Observer

100:多層顯示模組 100:Multi-layer display module

110:第一顯示面板 110: First display panel

120:第二顯示面板 120: Second display panel

130:驅動裝置 130: Driving device

140:影像合成控制單元 140: Image synthesis control unit

170:追瞳裝置 170:Pupil tracking device

d:間距 d: Spacing

DS1:第一距離 DS1: First distance

DS2:第二距離 DS2: Second distance

Claims (20)

一種多層顯示模組，包括：一第一顯示面板；一第二顯示面板，位於該第一顯示面板一側且重疊該第一顯示面板，且包括多個顯示像素及該些顯示像素間的透光區域，各該些顯示像素包括多個微型發光二極體，其中該第一顯示面板與該第二顯示面板具有一間距；一驅動裝置，用以同步提供影像訊號予該第一顯示面板以及該第二顯示面板而分別顯示出第一影像和第二影像，並且提供物件圖像訊號予該第一顯示面板或該第二顯示面板，而顯示出物件圖像，其中該物件圖像顯示於該第一顯示面板時為第一物件圖像，而該物件圖像顯示於該第二顯示面板時為第二物件圖像，該第一影像通過該透光區域與該第二影像以及物件圖像形成一觀看畫面；以及一影像合成控制單元，用以依據外部觀看者之相對位置資訊，並計算該外部觀看者分別與該第一顯示面板以及該第二顯示面板的第一距離以及第二距離，根據該第一距離以及該第二距離，增加該第一物件圖像顯示於該第一顯示面板時之尺寸，或縮小該第二物件圖像顯示於該第二顯示面板時之尺寸，使該第一物件圖像與該第二物件圖像對於該外部觀看者具有相同的視野角。 A multi-layer display module includes: a first display panel; a second display panel located on one side of the first display panel and overlapping the first display panel, and including a plurality of display pixels and light-transmitting areas between the display pixels, each of the display pixels including a plurality of micro-light-emitting diodes, wherein the first display panel and the second display panel have a spacing; a driving device for synchronously providing an image signal to the first display panel and the second display panel to display a first image and a second image respectively, and providing an object image signal to the first display panel or the second display panel to display an object image, wherein the object image is a first object image when displayed on the first display panel. The first image is a first image, and the object image is a second object image when displayed on the second display panel. The first image forms a viewing screen with the second image and the object image through the light-transmitting area; and an image synthesis control unit is used to calculate the first distance and the second distance between the external observer and the first display panel and the second display panel respectively according to the relative position information of the external observer, and increase the size of the first object image when displayed on the first display panel, or reduce the size of the second object image when displayed on the second display panel according to the first distance and the second distance, so that the first object image and the second object image have the same viewing angle for the external observer. 如請求項1所述的多層顯示模組，更包括一追瞳裝置，用以量測該外部觀看者與該多層顯示模組之相對位置資訊，並提供給該影像合成控制單元。 The multi-layer display module as described in claim 1 further includes a pupil tracking device for measuring the relative position information between the external viewer and the multi-layer display module and providing it to the image synthesis control unit. 如請求項2所述的多層顯示模組，其中該追瞳裝置包括內嵌於該第一顯示面板或該第二顯示面板的該些顯示像素間的感測元件。 A multi-layer display module as described in claim 2, wherein the pupil tracking device includes a sensing element embedded between the display pixels of the first display panel or the second display panel. 如請求項1所述的多層顯示模組，其中當該第一物件圖像顯示於該第一顯示面板的狀態要切換到該第二物件圖像顯示於該第二顯示面板的狀態時，該影像合成控制單元將該第二物件圖像於第二顯示面板的尺寸減小，當該第二物件圖像顯示於該第二顯示面板的狀態要切換到該第一物件圖像顯示於該第一顯示面板的狀態時，該影像合成控制單元將該第一物件圖像於第一顯示面板的尺寸增大，使該第一物件圖像與該第二物件圖像對於該外部觀看者具有相同的視野角。 The multi-layer display module as described in claim 1, wherein when the state of the first object image displayed on the first display panel is to be switched to the state of the second object image displayed on the second display panel, the image synthesis control unit reduces the size of the second object image on the second display panel, and when the state of the second object image displayed on the second display panel is to be switched to the state of the first object image displayed on the first display panel, the image synthesis control unit increases the size of the first object image on the first display panel, so that the first object image and the second object image have the same viewing angle for the external observer. 如請求項1所述的多層顯示模組，其中該影像合成控制單元分別將顯示於該第一顯示面板的該第一物件圖像的尺寸漸變增加或將顯示於該第二顯示面板的該第二物件圖像的尺寸漸變縮小，使該該第一物件圖像與該第二物件圖像對於該外部觀看者具有相同的視野角。 The multi-layer display module as described in claim 1, wherein the image synthesis control unit gradually increases the size of the first object image displayed on the first display panel or gradually reduces the size of the second object image displayed on the second display panel, so that the first object image and the second object image have the same viewing angle for the external observer. 如請求項1所述的多層顯示模組，其中該驅動裝置包含一影像資料庫，該影像資料庫之影像資料具有按照相同時序所列之第一影格與第二影格，該驅動裝置經過解碼後，將該第一 影格與該第二影格轉換為該影像訊號並在提供該第一顯示面板以及該第二顯示面板後，使該第一顯示面板以及該第二顯示面板依據內含之時序資訊同步播放。 A multi-layer display module as described in claim 1, wherein the driving device includes an image database, the image data of the image database has a first frame and a second frame listed in the same timing sequence, and the driving device converts the first frame and the second frame into the image signal after decoding and provides the first display panel and the second display panel, so that the first display panel and the second display panel are played synchronously according to the contained timing information. 如請求項1所述的多層顯示模組，其中該第二顯示面板的透光率為T2，該第一顯示面板亮度為L1、該第二顯示面板亮度為L2，該多層顯示模組符合T2>40%及
Figure 112149779-A0305-13-0003-8
。 The multi-layer display module as claimed in claim 1, wherein the transmittance of the second display panel is T2, the brightness of the first display panel is L1, and the brightness of the second display panel is L2, and the multi-layer display module meets T2>40% and
Figure 112149779-A0305-13-0003-8
. 如請求項1所述的多層顯示模組，其中該第一顯示面板亮度為L1，該第二顯示面板亮度為L2，該第二顯示面板的透光率為T2，該多層顯示模組符合
Figure 112149779-A0305-13-0003-9
。 The multi-layer display module as claimed in claim 1, wherein the brightness of the first display panel is L1, the brightness of the second display panel is L2, the transmittance of the second display panel is T2, and the multi-layer display module meets
Figure 112149779-A0305-13-0003-9
. 如請求項1所述的多層顯示模組，其中該第一顯示面板亮度為L1，該第二顯示面板亮度為L2，該第二顯示面板的透光率為T2，該多層顯示模組符合
Figure 112149779-A0305-13-0003-10
。 The multi-layer display module as claimed in claim 1, wherein the brightness of the first display panel is L1, the brightness of the second display panel is L2, the transmittance of the second display panel is T2, and the multi-layer display module meets
Figure 112149779-A0305-13-0003-10
. 如請求項1所述的多層顯示模組，其中該第一顯示面板的長邊尺寸為D1，該第一顯示面板具有第一像素解析度P1，該第二顯示面板的長邊尺寸為D2，該第二顯示面板具有第二像素解析度P2，該第一顯示面板與該第二顯示面板的間距為d，該第二顯示面板的透光率為T2，該多層顯示模組符合T2>40%，P1≠P2及
Figure 112149779-A0305-13-0003-11
。 The multi-layer display module as claimed in claim 1, wherein the long side dimension of the first display panel is D1, the first display panel has a first pixel resolution P1, the long side dimension of the second display panel is D2, the second display panel has a second pixel resolution P2, the distance between the first display panel and the second display panel is d, the transmittance of the second display panel is T2, and the multi-layer display module meets T2>40%, P1≠P2 and
Figure 112149779-A0305-13-0003-11
. 如請求項1所述的多層顯示模組，其中該第一顯示面板所能夠發出的額定最大亮度為L1，該第二顯示面板所能夠發出的最大額定亮度為L2，且L1大於L2。 A multi-layer display module as described in claim 1, wherein the maximum rated brightness that the first display panel can emit is L1, the maximum rated brightness that the second display panel can emit is L2, and L1 is greater than L2. 如請求項11所述的多層顯示模組，其中L1與L2的比值是落在1.2至2的範圍內。 A multi-layer display module as described in claim 11, wherein the ratio of L1 to L2 is within the range of 1.2 to 2. 如請求項11所述的多層顯示模組，其中該第二顯示面板的像素解析度大於或等於該第一顯示面板的像素解析度。 A multi-layer display module as described in claim 11, wherein the pixel resolution of the second display panel is greater than or equal to the pixel resolution of the first display panel. 如請求項11所述的多層顯示模組，其中該第一影像的亮度由一電壓訊號控制，該第二影像的亮度由一電流訊號驅動。 A multi-layer display module as described in claim 11, wherein the brightness of the first image is controlled by a voltage signal and the brightness of the second image is driven by a current signal. 如請求項1所述的多層顯示模組，其中該第一顯示面板的長邊尺寸為D1，該第二顯示面板的長邊尺寸為D2，該第一顯示面板與該第二顯示面板的間距為d，該多層顯示模組符合
Figure 112149779-A0305-13-0004-12
。 The multi-layer display module as claimed in claim 1, wherein the long side dimension of the first display panel is D1, the long side dimension of the second display panel is D2, the distance between the first display panel and the second display panel is d, and the multi-layer display module meets
Figure 112149779-A0305-13-0004-12
. 如請求項1所述的多層顯示模組，其中該第二顯示面板的該些顯示像素的發光張角大於該第一顯示面板的該些顯示像素的發光張角。 A multi-layer display module as described in claim 1, wherein the luminous angle of the display pixels of the second display panel is greater than the luminous angle of the display pixels of the first display panel. 如請求項1所述的多層顯示模組，更包括一光學膜，配置於該第一顯示面板與該第二顯示面板之間，該光學膜對於該第二顯示面板所發出的光反射率大於等於90%，或該光學膜對於該第一顯示面板所發出的光透光率大於等於90%。 The multi-layer display module as described in claim 1 further includes an optical film disposed between the first display panel and the second display panel, wherein the reflectivity of the optical film for the light emitted by the second display panel is greater than or equal to 90%, or the transmittance of the optical film for the light emitted by the first display panel is greater than or equal to 90%. 如請求項17所述的多層顯示模組，其中該第一顯示面板的該些顯示像素具有多個第一子像素，該第二顯示面板 的該些顯示像素具有多個第二子像素，其中相同顏色的該第一子像素與該第二子像素所發出的光所具有的峰值波長不相同。 A multi-layer display module as described in claim 17, wherein the display pixels of the first display panel have a plurality of first sub-pixels, and the display pixels of the second display panel have a plurality of second sub-pixels, wherein the peak wavelengths of light emitted by the first sub-pixels and the second sub-pixels of the same color are different. 如請求項18所述的多層顯示模組，其中該光學膜的高透光率波長區間對應該第一顯示面板的各該些第一子像素的波長，該光學膜的高反射率波長區間對應該第二顯示面板的各該些第二子像素的波長。 A multi-layer display module as described in claim 18, wherein the wavelength range of the optical film with high light transmittance corresponds to the wavelength of each of the first sub-pixels of the first display panel, and the wavelength range of the optical film with high reflectance corresponds to the wavelength of each of the second sub-pixels of the second display panel. 如請求項1所述的多層顯示模組，包括一第三顯示面板，位於該第二顯示面板遠離該第一顯示面板的一側，其中該第三顯示面板的透光率大於該第二顯示面板的透光率，且該第二顯示面板的亮度大於該第三顯示面板的亮度。 The multi-layer display module as described in claim 1 includes a third display panel located on a side of the second display panel away from the first display panel, wherein the light transmittance of the third display panel is greater than the light transmittance of the second display panel, and the brightness of the second display panel is greater than the brightness of the third display panel.
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